Varun Sridharan
VS Writings

VS Writings

Convert Putty Key Gen File Into RSA Key File

Convert Putty Key Gen File Into RSA Key File

Varun Sridharan's photo
Varun Sridharan

Published on Nov 28, 2020

2 min read

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As a windows user i generate my SSH keys using Putty Key Generator which provides the key in .ppk. but today i had a special requirement which required my SSH Key in RSA Format

Since i learned something new on how to convert .ppk into RSA i thought that i could share it with you to.

Lets Get Started

Requirements

  1. Putty Generated Key
  2. Putty Key Generator App For Windows
  3. Linux Server (Ubuntu preferred)

Step 1

Load the Private Key File in Putty Key Generator and export it as OpenSSH Key

Image

The exported key file should have text "BEGIN OPENSSH PRIVATE KEY" Exported File

Step 2

Upload the file to a Linux server and run the below cmd which will convert the OpenSSH Key into RSA and update the same file

ssh-keygen -p -m PEM -f  {your-key-filename}

Step 3

Thats it. your putty Generated key file is now converted to RSA key.



 
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